Apparatus for processing yarn



Sept, i3, 1949.- EWING 2,431,916

APPARATUS FOR PROCESSING YARN Filed July 9, 194a 4 Sheets-Sheet 1 INVENTOR. AL W L. Ewuva A TTORNE'Y Sept. 13, 1949.

A. L. EWING v I 2,481,916

APPARATUS FOR PROCESSING YARN Filed July 9, 1946 4 Sheets-Sheet 2 4 r romva'r A. L. EWING APPARATUS FOR PROCES SING YARN 4 shee'ts-srieet 3 Filed July 9, 1946 INVENTOR- vnv LEW/N6 A Arronusx $ept. 13, 1949. wmg

APPARATUS FOR PROCESSING YARN 4 Sheets-Sheet 4 Filed July' 9, 1946 INVENTOR. ALV/NL.P V/NG 19%;;

Ariaklvcx Patented Sept. 13, 1949 APPARATUS FOR PROESSlNG YARN Alvin L. Ewing, Richmond, Va., assignor to a. L 'du Pont de Nemours & Company, Wilmington, Del., a corporation of Delaware ApplicationJuly 9, 1946, Serlal No. 682,425

. 9 Claims. (Cl. 68- 62) This invention relates to a new apparatus for processing yarn. More particularly, it relates to an apparatus for liquid processing yarn as it 15 being continuously advanced in substantially helical form along thelength of a yarn-advancing reel.

Yarn-advancing reels of the type wherein yarn is continuously advanced across the. reel in a substantially helical form have been employed for processing freshly spun rayon yarn as it was continuously advanced across the length of such reel. When the yarn on the reel was processed with liquids, the appropriate liquid was applied to the top of the advancing reel by means of overhead perforated drip pans, sprays, and the like.

. 2 reel periphery and opposite to the dip pan will pass through a layer or film of the processing The flow of the processing liquid through the perforations frequently varied because the perforations became more-or less clogged or the pressure suddenly changed. Consequently, the processing liquid was not uniformly applied to the yarn and uneven processing of the yarn resulted.

An object of this invention is to provide a new and improved apparatus for processing yarn while it is continuously advanced in a thread sheet.

Another object of this invention is to provide a newand improved apparatus for processing yarn with a liquid while the yarn is continuously advanced in a substantially helical form across a yarn-advancing reel.

An additional object of this invention is to provide a new and improved apparatus for processing rayon yarn while the yarn is continuously advanced in a substantially helical form across a yarn-advancing reel.

A further object of this invention is to provide a new and improved apparatus for washing freshly produced rayon yarn asv it is being advanced'in a substantially helical form across a yarn-advancing reel.

Other and additional objects will become apparent hereinafter.

The objects of the invention are accomplished, in general, by passing the yarn wound on a rotatin yarn-advancing reel through a moving thin layer of the processing liquid which is preferably adjacent the path of travel of the thread sheet on the lower portion of the reel periphery and extends not over more than the lower half of the reel periphery.

The .apparatus for carrying out the method comprises, in general, a shallow bottom dip pan positioned adjacent the path of rotation of a yarn-advancing reel and in as close proximity as possible to the thread sheet on the rotating reel so that the thread sheet on the lower half of the liquid in the pan.

The dip pan can consist of one shallow long pan extending'substantially the entire length of the reel and the'processing liquid continuously supplied thereto so that the liquid preferably will flow counter to the direction of the yarn advancement across the reel. Alternatively, a plurality of narrow shallow dip pans arranged in spaced relationship lengthwise of the reel can be used. When a plurality of narrow dip pans are used, the processing liquid is separately and continuously supplied to each pan, preferably in a manner to provide a flow in each pan counter to the direction of rotation of the reel.

shallow open-ended dip pan or pans provided with troughs or cascades, whereby the processing liquid is caused to cascadedown the pan, can also be used. The contours'of such cascades can be horizontal and parallel to the reel axis or inclined, i. e. sloped downwardly toward the advancementof the thread sheet on the reel. The pans are disposed so that the inner faces of the troughs are in close proximity to the thread sheet on the reel.

In that embodiment of the invention wherein the contours of the cascades are inclined, such cascades canextend over the entire surfaceof the pan. Preferably, however, the inclined cascades progressively increase in length and each of the respective troughs is provided with a dam at the inner end thereof whereby the accumulated liquid runnin down the trough is directed back against the thread sheet.

The cascade pans can be one long pan extending substantially over the entire length of the reel, or, alternatively, a plurality of narrow cascade pans arranged in spaced relationship lengthwise of the reel can be used.

The processing liquid can be supplied to the cascade pans so that the flow thereof is concurrent, countercurrent, or both concurrent and countercurrent, to the direction of rotation of the reel.

Due to the construction of the pans, the processing liquid will overflow one or both of the ends thereof, and a. catch pan or pans are provided for such overflow. Depending on the system, the overflow can be directed from the catch pans to disposal, or recycled and used over again. V

The extent of the pan or pans about the periphery of the reel varies with the speed of the reel, the diameter thereof, the number of ends being processed, and the width of the advancement band.

The invention will be more clearly understood by reference to the following detailed description when taken in connection with the accompanying drawings, in which:

Figure 1 is a diagrammatic perspective view of an embodiment of the invention utilizing one bottom dip pan;

Figure 2 is a diagrammatic view of the left end of the apparatus shown in Figure 1;

Figure 3 is a diagrammatic perspective view of an embodiment of the invention wherein a plurality of narrow bottom dip pans are used;

Figure 4 is a diagrammatic end view of theapparatus shown in Figure 3;

Figure 5 is a diagrammatic end view of an embodiment of the apparatus utilizing a cascade pan, and wherein the processing liquid is supplied in a direction countercurrent to the directionof rotation of the yarn-advancing reel;

Figure 6 is a fragmentary diagrammatic side elevation of the apparatus of Figure 5;

' Figure '7 is a fragmentary diagrammatic side elevation of an apparatus utilizing a cascade pan wherein the cascades are inclined;

Figure 8 is a diagrammatic end view of an embodiment of the apparatus utilizing cascade pans, and wherein the processing liquid is applied concurrently to the direction of rotation of the yarn-advancing reel:

Figure 9 is a diagrammatic end view of an apparatus wherein the cascade pan extends about substantially the entire lower half of the reel periphery;

Figure 10 is a fragmentary diagrammatic side elevation of another embodiment of a cascade Figure 11 is an end view of the apparatus shown in Figure 10; and

Figure 12 is a development of the cascade pans shown in Figures 10 and 11.

Though the invention can be used for desulfuring and otherwise purifying viscose rayon yarn as well as washing, it will be described for convenience in connection with washing freshly spun viscose rayon yarn with water to remove the acid therefrom.

Referring now to the drawings wherein like reference numerals designate like parts, and particularly to Figures 1 and 2, the reference numeral it! designates a yarn-advancing reel continuously rotated (by means not shown) about the center axis of the reel shaft ii. The yarnadvancing reel is of the knowntype wherein a yarn wound in substantially the form of a helix about the periphery of the reel is continuously and smoothly advanced in such helical form along the length of the reel during rotation thereof. Since such reels are known and the precise details of construction thereof form no essential part of this invention, further description thereof is deemed unnecessary.

Freshly produced viscose rayon yarn i2, after being withdrawn from the regenerating bath, is Wound on the reel ill in substantially helical form and continuously advanced in such form across the reel in the direction of the arrow to the point of discharge, where the yarn leaves the reel and is collected in any suitable collection device (not shown). In order to apply water to the advancing yarn on the reel, there is provided a shallow bottom dip pan I 4 in which the opposite ends l6 and I! are formed with arcuate depressions I8. The radius of each of such depressions is from the center axis of the reel axle and the reel on the rotating reel for the purpose of catching such water and returning it to the pan. The corner of the side 22 adjacent the discharge end of the reel is cut away to form an inclined edge 23 which terminates at the top edge ofthe end It. As shown in Figure 2, the end ll adjacent the side 22 is of the same height as the side 22, and the depression extends over a greater arc of the reel periphery than the depression in the end I6.

Water, at a controlled rate, is continuously fed to the pan l4 through the supply lines 24 positioned adjacent the discharge end of the reel and parallel to the axis'of the reel, whereby the flow of water in the pan is countercurrent to the direction of the yarn advancement. The level of the water is maintained in the pan so that the thread sheet on the bottom of the rotating reel will pass through a thin layer or film of the flowing water.- The continuous feed necessary to maintain such water level in the pan will cause the water to overflow the ends it, and particularly the arcuate depression 18. Catch pans 26 appropriately positioned beneath the pan !4 receive the over flow from the respective ends. Each catch pan is provided with a drain 28 connected to disposal.

Instead of utilizing a single pan which extends substantially the entire length of the reel, as shown in Figure 1, a plurality of narrow shallow dip pans can be utilized. Referring now to Figures 3 and 4 wherein such a set-up is shown, each pan 30 comprises a pair of sides 32 and 34 appropriately secured to the opposite pan ends 36. The side 34 is of increased height relative to the side 32 and is for the purpose of catching the water which is thrown oh the reel during the rotation of the reel, and returning it to the respective pans. As shown in Figures 3 and 4, each of the ends 36 is formed intermediate its ends with an arcuate depression 40 (the curvature of which is on a radius from the center axis) and the yarn-advancing reel is positioned so that it is disposed in but in spaced relationship to the depression 40. Each pan 30 is provided with a separate feed 44 appropriately connected to the side 32 of each p'an whereby the water is supplied continuously to the respective pans. 'Each feed 44 is, as shown in the drawings, at to the axis of the reel, The rate of supply is such that the level of the liquid is maintained at such a height in the pan that the bottom of the reel periphery will be in contact with the water in the pan sothat the yarn sheet on the reel will be passed therethrough. Due to this, the water will overflow the ends 36, particularly at the depressions 40. A catch pan 48 is appropriately positioned beneath the pans 30 to catch the overflow. The catch pan 48 can be provided with an outlet whereby the overflow isconducted to the sewer or other disposal. In the preferred form, however, the catch pan 48 is divisioned by partitions 50 so that each division will cooperate with a separate pan. Each division is provided with a drain 52 whereby the overflow from subsequent stages of washing can be recirculated by means of a pump (not shown) and used over again on the pans where the yarn has a lower pH.

The width of the pans II depends on the width of the yarn bands or number of ends of yarn being advanced by the reel. In general, the pans 30 are spaced suillciently to permit the overflow from each of the respective pans to be separately caught in the respective divisions of the catch pan.

In the forms shown in Figures 1-4 inclusive, the reel contacts with the water through an arc which depends on the speed of the reel, the diameter of the reel, the number of ends being processed, and the width of the advancement band. For example, in a set-up of the type shown in Figures 3 and 4, wherein the periphery of the yarn-advancing reel was 40" and the reel was rotated at 75m 100 R. P. M., the acid from the freshly regenerated viscose rayon yarn was satisiactorily removed by washing with water when three pans 2" wide spaced about 2" apart, and the water level in each pan contacting about 30 of the periphery of the reel, were utilized.

It is not essential that the shallow bottom dip pans be of the precise form shown in Figures 1-4 inclusive. The dip pans can be open-ended curved troughs disposed at the bottom of the reel and in as close proximity as possible 'to the thread sheet on the rotating reel, so that the thread sheet on the lower half of the reel periphery and pass through a layer opposite to the dip pan will or film of the water in the pan.

The invention also contemplates using a pan or pans provided with troughs or cascades whereby the water is caused to cascade down the pan.

Referring now to Figures 5 and 6, wherein a set-up utilizing a cascade pan is shown, the reference numeral 56 designates an open-ended cascade pan which is positionedso that the troughs W of the cascade pans are in close proximity to the thread sheet on the reel periphery. The water is supplied continuously from a feed inlet at from which it is directed into the cascade pan by means of a deflector 64 secured to the upper end of the cascade pan 56. The deflector 64 is of a size and shape so that the water impinging thereon will be spread into a sheet of a width substantially equal to the width of the pan and such sheet directed to the pan. The rate of feed is such as to provide a flowing film of processing liquid in the pan through which the yarn sheet on the reel periphery passes.

The cascades can be parallel to the reel axis, as shown in Figure 6. Alternatively, they may be inclined to the direction of the yarn advancement across the reel as indicated by reference numeral 6t (see Figure 7) A catch pan 66 is provided to catch the overflow of the processing liquid from the cascade pan.

In the embodiment shown in Figure 5, the water is applied countercurrent to the direction of rotation of the reel, and it is preferred that the cascade pan 5G be positioned in the third quadrant and be of a size that the thread sheet will contact the him of water .for approximately 90 from the point of supply. Preferably also, the sides of the trough are rounded.

This invention does not require the water to be applied to the cascade pan countercurrent to the direction of rotation of the reel. Cascade pans with parallel or inclined troughs can also be used in set-ups as shown in Figure 8 wherein the supply is concurrent to the direction of rotation of the reel. In this embodiment, the water is fed to the cascade pan is from a feed supply 12 and a deflector plate" similar to that described in- 6 connection with Figure 5. Since the greatest amount of water is thrown off the reel in the third quadrant when rotation of the reel is clockwise, due to the action of gravity and centrifugal A catch pan [6 is provided to catch the overflow from the cascade pan Ill.

As previously mentioned, when cascade pans are used, the interfaces of the troughs are in as close proximity to the yarn sheet on the reel as possible. When the troughs of the cascade pans are at an angle to the thread advancement, as above explained, the water is given a counterflow with respect to the yam advancement. In general, a cascade pen in which the contours are inclined to the yarn advancement is wider than a cascade pan having contours parallel to the reel axis.

The deflector plates 64 and 74, which receive the processing liquid from the respective supplies and direct the liquid directly to the cascade pans, are of a design and shape which will spread the liquid into a thin sheet approximately equal to the length of the pan axially of the. reel.

Though in Figures 5 and 8 set-ups are disclosed wherein the water is supplied countercurrently or concurrently to the rotation of the reel respectively, the invention is not restricted thereto. The water can be supplied, as shown in Figure 9, so that it will be both counter'current and concurrent to the direction of rotation of the reel.

Referring now to Figure 9, the cascade pan l8 embraces approximately the entire lower half of the reel periphery, and water is supplied to each side thereof by feeds and 82 which cooperate with deflectors 84 and 86 respectively in the same manner as hereinbefore described. Though in this embodiment the cascades are rounded and can be parallel to the reel axis, it is preferred that they be inclined to the direction of the yarn advancement across the reel. In such a set-up, most of the overflow leaves the cascade pan on the-leading end with respect to the advancing thread where the yarn has the lowest pH. A catch pan 8! is appropriately positioned beneath the cascade pan 18 to receive the overflow and from which it can be directed through a drain 88 to disposal.

In that embodiment-pf the invention wherein a cascade pan is utilized, it is preferred that the troughs be of progressively greater lengths and the inner ends of such troughs be dammed so as to direct the accumulated water running down the troughs back against the thread sheets. The progressive location of the dams spaces each of these overflows over a greater area of the thread sheet as the water cascades down over the troughs. In other words, the troughs are progressively arranged so that each stream deflected progressively increasing lengths. The troughs 92 of each pan are, as shown in Figure 10, inclined toward the direction of yarn advancement across the reel and which, in the form shown, is from 7 the left to the right in Figure 10. Each trough at its inner end is provided with a dam 94. The pans 90 and SI, which are spaced from each other at their opposed lower ends, embrace the reel through an arc of approximately 180", as shown in Figure 11. At the bottom and adjacent the leading end of the pans withrespect to the advancing yarn, there is provided a sump 96, and the bottoms of the pans are cut short. Each end of the sump is arcuated, as indicated by the reference numeral 98, on a radius from the center axis of the reel axle, and the reel is positioned so that the periphery thereof will be disposed in but spaced from said depression. The upper end of each of the pans 90 and 9! is provided with an inclined guard I00. and IN respectively for purposes which will hereafter appear. It isto be noted that the inclined troughs 92 do not extend over the entire inner face of the respective pans and that the lower troughs lead to the sump 96. Also, the portions of the pans which are free of troughs also lead to the sump.

A water supply I02 directs the water onto a deflector plate I04 which is of a size and so located relative to the supply I02 and the thread sheet on the reel that the water impinging on such plate will be spread into a thin sheet approximately the length (axially of the reel axis) of the deflector plate, and this sheet of water will strike the yarn surface countercurrent to the direction of rotation of the reel. In general, the width of the sheet of water "is approximately equal to the length (axially of the reel) of the pan hereafter described. The deflector plate I04 is regulated so that the sheet of water does not quite slide oh the reel as the latter turns into it. The water is carried over the top of the reel until it is thrown off by gravity and centrifugal force. The water thrown ofl, as thus described, is caught by the pan 90. Some of the liquid spray passes directly to the sump without being caught by the troughs 92, but thiswater contacts the yarn of low pH and becomes acidified rapidly.

The water which strikes the cascade portion of the pan flows down each of the respective troughs until it strikes the graduated dams and is directed back against the yarn until it reaches the bottom which, as previously described, is cut short so that the water reaching it with a lower pH does not act on the yarn that has been washed acid-free.

A catch pan I06 is appropriately positioned beneath the pan to receive the overflow from the ends of the pan and the sump.

The water which does not overflow the ends of the bottom pan contacts the yarn sheet on the reel and is thrown against the other pan 9 I, which water is again returned by gravity to the sump pan, where it finally overflows the arcuated ends.

If desired, a sheet or film of water can also be supplied to the thread sheet on the reel in a direction concurrent to the direction of travel of the reel. To effect this, a supply H and a deflector plate '2 are utilized.

The troughs 92 are sloped downwardly, such as 10 to toward the advancement of the thread sheet on the reel. As in the previous embodiment, the sides of the troughs are rounded and the inner faces are as close as possible to the thread sheet on the rotating reel.

The inclined guards I00 and IOI serve to direct any solution that tends to splash away from the reel back into the cascade section of the respective pan. They can also serve as deflector plates when it is preferred to have the water 8 strike the reel in the opposite directionfrom that coming off the deflector plates I04 and H2.

Though in the set-up shown in Figures 10 and 11 one deflector plate is used with one feed, the invention is not restricted thereto. "A plurality of feeds can be used with each deflector plate or a plurality of deflector plates together with a corresponding number of supplies can be used.

Instead of using a plurality of pairs of pans 90 and SI arranged in spaced relationship, as above explained, a single pan of a construction similar to the pans 90 and 9| extending the entire length of the reel can be utilized. In such an embodiment, the deflector plate is made of an appropriate length and a plurality of supplies are directed onto such deflector plate in order to spread the impinging water into a substantially single sheet, which is directed onto the yarn on the reel either countercurrently or both countercurrently and concurrently to the direction of rotation of the reel.

In the form shown in Figures 10, 11 and 12 inclusive, the dimensions of the pans depend on the speed of the reel, the diameter of the reel, the number of ends being processed, and the width of the advancement band. For example, in the set-up shown in Figures 9-12 inclusive wherein the deflector plate was 8" long in the direction of the reel axis and 4" wide, the periphery of the yarn-advancing reel was 40" and the reel was rotated at to 100 R. P. M., satisfactory removal of acid from a freshly produced viscose rayon yarn was obtained when the cascade pans were 1' in length axially of the reel and a water delivery between 15 and 30 gallons per pound of yarn was used, the troughs of each pan being spaced about 1%" apart and sloped at about 10 to 15 downward toward the advancement of the thread sheet on the reel and each trough being approximately wide with a side next to the yarn sheet and dammed progressively at greater distances, as shown in the drawings.

In those set-ups wherein a plurality of pairs of cascade pans are used, each pair of such pans can be spaced approximately 1 /2" to 2" apart.

The application of the processing liquid by the supply I02 and deflector plate I04 and/or the supply H0 and the deflector plate II2 can also be used in set-ups which do not include bottom pans.

Though the preferred form of the invention contemplates its use with an advancing reel, the invention is not restricted for use with any precise yarn-advancing reel. It can be utilized in conjunction with yarn-advancing reels of any type. Illustrative yarn-advancing reels which can be utilized in the invention are disclosed in copending applications:

Serial No. 633,339, filed December 7, 1945, issued as U. S. Patent No. 2,428,704 on October 7, 1947; Serial No. 640,231, filed January 10, 1946, Serial No. 644,939, filed February 1, 1946, issued as U. S. Patent No. 2,435,430 on February 3, 1948; Serial No. 644,940, filed February 1, 1946, issued as U. S. Patent No. 2,428,703 on October 7, 1947;

Serial No. 645,718, filed February 6, 1946, issued as U. S. Patent No. 2,429,534 on October 21, 1947; Serial No. 656,625, filed March 23, 1946, issued as U. S. Patent No. 2,432,046 on December 2, 1947;

is being processed over rolls or in a thread sheet wherein such application of liquids can be readily applied. It likewise can be used for processing yarn, and particularly washing yarn, fixed relative to and laid down in a single layer on a travelling cylinder. In general, the invention can be applied to liquid processing of yarn preferably wound in a single layer or thread sheet on a rotating reel, irrespective of whether the yarn is fixed or movable relative to such support. Though the invention has been described particularly in connection with washing freshly spun rayon yarn substantially free of acid, the invention is not restricted thereto. The invention can be utilized for the liquid processing of any yarn while it is being advanced,

as herein described. It can be utilized for the desulfuring or the otherwise purification of freshly produced viscose rayonyarn. By, the use of an appropriate number of pans and a sumoiently long reel, a freshly produced yarn can be successively desulfured and otherwise purified as well as washed between each of such steps and after the final step.

The invention provides an apparatus for liquid processing of yarn, particularly washing freshly produced viscose rayon yarn as it is being ad-.

vanced in a substantially helical form across a yarn-advancing reel. The manner herein described for applying the processing liquid by passing the yarn on the whole or part of the lower half of the reel periphery through a mov-: ing layerof the processing liquid permits uniform application to the yarn, with the result that substantially even and uniform processing of the yarn is obtained.

-Since it is obvious that many changes and modifications can be made in the above-described details Without departing from the nature and spirit of the invention, it is to be understood that the invention is not to be limited thereto except as set forth in the appended claims.

I claim:

1. In combination with a rotating reel on which yarn is wound, an open-ended pan positioned adjacent the path of rotation of said reel and 'in as close proximity as possible to the yarn sheet on the rotating reel so that the yarn sheet on the lower half of the reel periphery and opposite to said pan will pass through a thin layer of the processing liquid in said pan, said pan having troughs to cause the processing liquid to cascade down said pan.

2. In combination with a rotating reel onrwhich yarn is wound, an open-ended pan positioned adjacent the path of rotation of said reel and in as close proximity as possible to the yarn sheet on the rotating reel so that the yarn sheet on the lower half of the reel periphery and opposite to said pan will pass through a thin layer of the processing liquid in said pan, said pan having troughs parallel to the reel axis to cause the processing liquid to cascade down said pan.

3. In combination with a rotating reel on which yarn is wound, an open-ended pan positioned adjacent the path of rotation of said reel and in as close proximity as possible to the yarn sheet on the rotating reel so that the yarn sheet on the lower half of the reel periphery and opposite to said pan will pass through a thin layer .of the processing liquid in said pan, said pan having troughs inclined downwardly toward the advancement of the thread sheet on the reel 10 I to cause the processing liquid tocascade down said pan.

4. In combination with a rotating reel on which yarn is wound, a pan positioned adjacent the path of rotation of said reel and in as close proximity as possible to the yarn sheet on the rotating reel so that the yarn sheet on the lower half of the reel periphery and opposite to said pan will pass through a thin layer of the processing liquid in said pan, said pan being open at its ends and having troughs of progressively increasing lengths and inclined downwardly toward the advancement of the yarn sheet on the reel.

5. In combination with a rotating reel on which yarn is wound, a pan positioned adjacent the path of rotation of said reel and in as close proximity as possible to the yarn sheet on the rotating reel so that the yarn sheet on the lower half of the reel periphery and opposite to said pan will pass through a thin layer of the processing liquid in said pan, said pan being open at its ends and having troughs of progressively increasing lenghts and inclined downwardly toward the advancement of the yarn sheet on the reel, each of said 'troughs being dammed at the inner ends thereof.

6. The combination set forth in claim 5 wherein the pan embraces approximately the lower half of the reel periphery and is cut short at the bottom thereof.

7. In combination with a rotating reel on which yarn is wound, means to apply the processing liquid in the form of a sheet to the yarn on said reel, and a pan positioned adjacent the path of rotation of said reel to receive the processing liquid thrown oil? said reel, said pan being positioned in as close proximity as possible to the yarn sheet so that the yarn sheet on the lower half of the reel periphery and opposite to said ban will pass through a thin layer of the proces- Sing liquid in said pan, said pan being open at its ends and having troughs of progressively increasing lengths, each of said troughs bein inclined downwardly toward the advancement of the yarn sheet on'the reel and dammed at the inner ends thereof.

8. In combination with a rotating reel on which yarn is wound, adeflector plate adjacent the path of travel of said reel, means to supply the processing liquid to said deflector plate whereby it is spread in the form of a sheet prior to application to the yarn on said reel, and a pan positioned adjacent the path of rotation of said reel to receive at least the processing liquid thrown ofi said reel, said pan embracing approximately the lower half of the reel periphery and being positioned in as close proximity as possible to the yarn sheet so that the yarn sheet on the lower half of the reel periphery and opposite to said pan will pass through a thin layer of the processing liquid in said pan, said pan being open at its ends and having troughs of progressively increasing lengths, eachv of said troughs bein inclined downwardly toward the advancement of the yarn sheet on the reel and dammed at the inner ends thereof.

9. In combination with arotating'reel on which yarn is wound, a deflector plate adjacent the path of travel of said reel, means to supply the processing liquid to said deflector plate whereby it is tioned in as close proximity as riossible tel) the UNITED STATES PATENTE yarn sheet so that the yarn shee on the ower Number Name half of the reel periphery and opposite to said 1 561 445 Elsaesser pan will pass through a, thin layer of the proces- 1682453 wmhehn Aug 1928 sing liquid in said pan, said pan being open at g 1874398 weise 1932 its ends and having troughs of progressively in- 1913'601 Leppin June 1933 creasing lengths, each of said troughs bein in- 1983221 Fumess" Dec 1934 clined downwardly toward the advancement of 2'067915 1937 the yarn sheet on the reel and dammed at the 2'272233 waltegrs 1942 inner ends thereof, said pan being cut short at. 10 Herrstm; 1942 the Awm L EWING 2,308,576 Kornegg Jan. 19, 1943 2,416,534 Naumann Feb. 25, 1947 REFERENCES CITED OTHER REFERENCES The following references are of record in the 15 Melliand Textilberiehtavoi. 24, (1943) page 93. file of this patent: 

